9720254970 has 24 divisors (see below), whose sum is σ = 25272663156. Its totient is φ = 2592067968.

The previous prime is 9720254953. The next prime is 9720254981. The reversal of 9720254970 is 794520279.

It can be written as a sum of positive squares in 2 ways, for example, as 9643043601 + 77211369 = 98199^2 + 8787^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54001327 + ... + 54001506.

Almost surely, 2^9720254970 is an apocalyptic number.

9720254970 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

9720254970 is an abundant number, since it is smaller than the sum of its proper divisors (15552408186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9720254970 is a wasteful number, since it uses less digits than its factorization.

9720254970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108002846 (or 108002843 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 9720254970 is about 98591.3534241213. The cubic root of 9720254970 is about 2134.1546430470.

The spelling of 9720254970 in words is "nine billion, seven hundred twenty million, two hundred fifty-four thousand, nine hundred seventy".